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Finding the Fourth Proportional to 14,610.22, 21,920.54 and 4,749.53

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Solution

The fourth proportional to 14,610.22, 21,920.54 and 4,749.53 is: 7,125.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,610.22 : 21,920.54 = 4,749.53 : x
  2. Step 2: Convert to fraction form
    14,610.22/21,920.54 = 4,749.53/x
  3. Step 3: Cross multiply
    14,610.22x = 21,920.54 × 4,749.53
  4. Step 4: Simplify right side
    14,610.22x = 104,112,129.00
  5. Step 5: Solve for x
    x = 104,112,129.00/14,610.22
  6. Step 6: Final answer
    x = 7,125.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.